/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package admin;

import entity.Groups;
import entity.Role;
import entity.Users;
import facade.GroupsFacadeLocal;
import facade.RoleFacadeLocal;
import facade.UsersFacadeLocal;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.Vector;
import javax.ejb.EJB;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.HttpConstraint;
import javax.servlet.annotation.ServletSecurity;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import utils.ConfigurationManager;

/**
 *
 * @author Tatyana
 */
@ServletSecurity(@HttpConstraint(rolesAllowed={"Administrator"}))
@WebServlet(name = "AssignUsers", urlPatterns = {"/AssignUsers"})
public class AssignUsers extends HttpServlet {
    @EJB
    private RoleFacadeLocal roleFacade;

    @EJB
    private GroupsFacadeLocal groupsFacade;
    @EJB
    private UsersFacadeLocal usersFacade;
    
    
 
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        Boolean temp = false;
        String selectedUsers = request.getParameter("users_for_group");
        int idGroup = Integer.parseInt(request.getParameter("idGroup"));
        String buttonType = request.getParameter("buttonType");
        String role = null;
        role=request.getParameter("roleForAssign");
        String[] users = selectedUsers.split("t");
        Vector<Users> usersList = new Vector<Users>();
        Collection<Role> groupRolesList = new Vector<Role>();
 
        Groups group = null;
        for (int i = 0; i < users.length; i++) {
            Users user = usersFacade.find(Integer.parseInt(users[i]));
            if (user != null) {
                usersList.add(user);
                group = groupsFacade.find(idGroup);
                groupRolesList = group.getRoleCollection();
                
                
               if (buttonType.equals("assignButton")){
                    user.setGroup(group);
                    for(Role r: groupRolesList){
                    user.setRole(r);
                    }
               }else {
                    if(buttonType.equalsIgnoreCase("deleteButton")){
                        user.removeGroup(group);
                    }
                }
                usersFacade.edit(user);
                temp = true;

            }
        }
        if(buttonType.equals("assignButton")){
            group.setUsersCollection(usersList);
        }else{
            if(buttonType.equalsIgnoreCase("deleteButton")){
                 group.getUsersCollection().removeAll(usersList);
            }
        }
        groupsFacade.edit(group);
        response.getWriter().write(temp.toString());
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
